在降雨条件下，多普勒效应后毫米波脉冲频谱发生展宽和压缩。

The spread and compress of millimeter wave pulse frequency spectrum will happen in Doppler Effect during rain.

youdao

在降雨条件下，多普勒效应后毫米波脉冲频谱发生展宽和压缩。

The spread and compress of millimeter wave pulse frequency spectrum will happen in Doppler Effect during rain.

youdao